| 1 | /* |
| 2 | * This file is part of DisOrder |
| 3 | * Copyright (C) 2004, 2005, 2006, 2007 Richard Kettlewell |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, but |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| 18 | * USA |
| 19 | */ |
| 20 | |
| 21 | #include <config.h> |
| 22 | #include "types.h" |
| 23 | |
| 24 | #include <sys/types.h> |
| 25 | #include <sys/socket.h> |
| 26 | #include <netinet/in.h> |
| 27 | #include <sys/un.h> |
| 28 | #include <string.h> |
| 29 | #include <errno.h> |
| 30 | #include <netdb.h> |
| 31 | |
| 32 | #include "log.h" |
| 33 | #include "configuration.h" |
| 34 | #include "client-common.h" |
| 35 | #include "addr.h" |
| 36 | #include "mem.h" |
| 37 | |
| 38 | /** @brief Figure out what address to connect to |
| 39 | * @param sap Where to store pointer to sockaddr |
| 40 | * @param namep Where to store socket name |
| 41 | * @return Socket length, or (socklen_t)-1 |
| 42 | */ |
| 43 | socklen_t find_server(struct sockaddr **sap, char **namep) { |
| 44 | struct sockaddr *sa; |
| 45 | struct sockaddr_un su; |
| 46 | struct addrinfo *res = 0; |
| 47 | char *name; |
| 48 | socklen_t len; |
| 49 | |
| 50 | static const struct addrinfo pref = { |
| 51 | .ai_flags = 0, |
| 52 | .ai_family = PF_INET, |
| 53 | .ai_socktype = SOCK_STREAM, |
| 54 | .ai_protocol = IPPROTO_TCP, |
| 55 | }; |
| 56 | |
| 57 | if(config->connect.n) { |
| 58 | res = get_address(&config->connect, &pref, &name); |
| 59 | if(!res) return -1; |
| 60 | sa = res->ai_addr; |
| 61 | len = res->ai_addrlen; |
| 62 | } else { |
| 63 | name = config_get_file("socket"); |
| 64 | if(strlen(name) >= sizeof su.sun_path) { |
| 65 | error(errno, "socket path is too long"); |
| 66 | return -1; |
| 67 | } |
| 68 | memset(&su, 0, sizeof su); |
| 69 | su.sun_family = AF_UNIX; |
| 70 | strcpy(su.sun_path, name); |
| 71 | sa = (struct sockaddr *)&su; |
| 72 | len = sizeof su; |
| 73 | } |
| 74 | *sap = xmalloc_noptr(len); |
| 75 | memcpy(*sap, sa, len); |
| 76 | if(namep) |
| 77 | *namep = name; |
| 78 | if(res) |
| 79 | freeaddrinfo(res); |
| 80 | return len; |
| 81 | } |
| 82 | |
| 83 | /* |
| 84 | Local Variables: |
| 85 | c-basic-offset:2 |
| 86 | comment-column:40 |
| 87 | fill-column:79 |
| 88 | indent-tabs-mode:nil |
| 89 | End: |
| 90 | */ |